Studies of Soil Erosion Using Isotop (137Cs and 210Pb excess) at Ciesek Sub Watershed, Upper Ciliwung Watershed, Bogor

Keywords: isotope, inventory value, land use, reference, soil erosion/deposition

Abstract

Fallout radio nuclides method has been being applied and developed to study and measure soil erosion for long time. This research aims to predict soil erosion/deposition in Ciesek subwatershed, Upper Ciliwung watershed using natural fallout radionuclides of 137Cs and 210Pb excess. Soil samples were taken using soil core along four transects of different land use types.  Soil samples were analyzed using Multi Channel Analyzer (MCA) to obtain inventory value of the radioisotopes. The research shows different distribution pattern of soil erosion/deposition of 137Cs and 210Pb excess isotopes. Application of 137Cs isotope shows soil erosion process under home mix garden and dryland farm, but soil deposition process occurs on bareland. In the contrary, 210Pb excess indicates soil erosion on bare land while soil deposition is under home mix garden and dryland farm. Application of 210Pb excess is more reliable than 137Cs in predicting soil erosion.

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Published
2020-10-26
How to Cite
Murtilaksono, K., Citraresmini, A., Yusuf, S. M., Bachtiar, T. and Lawaswati, D. M. (2020) “Studies of Soil Erosion Using Isotop (137Cs and 210Pb excess) at Ciesek Sub Watershed, Upper Ciliwung Watershed, Bogor”, Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management), 10(3), pp. 501-510. doi: 10.29244/jpsl.10.3.501-510.